Jeep Comanche

Generally if your headlights don't work, and the headlamps are still good themselves, the "Headlamp dimmer switch" is the culprit. It is located under the dash, attached to the left side of the steering column. It has a rod coming from the combination switch going into it.

However, this switch only deals with the low/high beam headlights. If your marker lights are also not working then either the park/tail fuse is blown, and/or your headlamp switch is still faulty and needs to be replaced.

The Haynes manual has a wiring diagram for the entire circuit. I'd recommend picking it up.

6 quarts

The Jeep Comanche came out in 1987 with a AMC 4.0L in line 6 cylinder engine. This engine is a perfect fit for the 1986 Comanche. My 1986 4x4 was originally shipped with a Renault Diesel engine. The engine was pulled and replaced with the 1987 AMC 4.0L in line 6 which is still running at 260 000KM. These engines can be picked up for anything from $200 - $2000. But why not sell your Comanche and buy a 4.0L in line 6 with 4x4.

stock, and if truck's a 4x4, may be lucky to fit 31's, look into rims with 4 in. backspace, more turning clearance.

You can test the fuel pump by touching the positive wire on the positive post of the battery. You will need to ground the ground wire.

you need to remove the caliper. then use one of the old pads along with a c clamp. put the old pad on the caliper piston then apply the c clamp till the caliper piston is completely closed. install new pads then reinstall the caliper. do the same for the other side. once you are finished crank up the vehicle and pump the brakes up until they are firm before you move the vehicle.

if your pan has a drain plug at the back of it drain the ATF first otherwise loosen the 19 bolts that hold the pan up, then remove the rear most and gently pry down on the back of the pan and let the ATF drain that way. Then remove the remaining bolts and wiggle the dipstivk tube apart ( the dipstick tube is connected to the pan and about 4 or 6 inches up there is a separation point on the tube it will come apart at the same time you want to quit). Then remove th pan being careful not to dammage the wires on the driver side inside the pan. clean up the pan and gasket mounting surface on the trans and trans pan. install new gasket and add about 5 qts. of merc./ dexron III or chrystler ATF +4 and your done.

Diagnostic port of the ECM is in the left front fenderwell close to the headlight.... The bad part.... The ECM is tucked up behind the instrument cluster on the firewall behind the drivers side dash board.... Have fun!

Yes I swapped a bench from a '91 into an '89, mounts were the same. I understand that you just can't go Comanche to Cherokee, and vice versa.

Remove the transmission to excess the inturnal slave cylinder

Under the hood on the drivers side is the engine wiring harness. Disconnect bolt from the center it has 1/4" head. Pull out both connectors together. Under the dash on the drivers side the fuse box has two screws , top left and lower right, which hold box to firewall.

You are an idiot. What sort of answer were you expecting when you submitted gibberish?

On a 1989 Jeep Comanche pickup, the horn fuse is located in the fuse box under the dashboard on the driver's side. You can access it by removing the cover of the fuse box, which is typically found near the steering column. The specific fuse for the horn is usually labeled in the diagram on the fuse box cover. If the horn isn't working, check this fuse first to see if it needs replacing.

To remove the steering wheel of a 1987 Jeep Comanche, first disconnect the battery to avoid any electrical issues. Then, remove the horn button by gently prying it off or unscrewing it, depending on the design. Use a steering wheel puller to unscrew the central nut and pull the steering wheel off the shaft. Finally, ensure you keep track of all removed parts for reinstallation.

The 1989 Jeep Comanche pickup typically weighs between 3,000 to 3,500 pounds, depending on the specific configuration and options. This weight can vary based on factors such as the engine choice and whether it has two-wheel or four-wheel drive. For a more precise figure, it's best to check the vehicle's specifications or consult the owner's manual.